A term that New Yorkers use to mean that someone is extremely attractive. Meaning they look good as hell. Either really handsome, or beautiful.
Example:
Guy:"Have you seen Kayla today?"
Guy 2: "Oh yeah! She was looking like a straight up Buttah Jawn"
Guy:"Have you seen Kayla today?"
Guy 2: "Oh yeah! She was looking like a straight up Buttah Jawn"
by The Bee Master October 7, 2013
 Get the Buttah Jawnmug.
Get the Buttah Jawnmug.